Space and astronomy
Astronomy is mostly a problem of scale. Once the distances and the sizes are in your head the rest of the solar system arranges itself, so this course starts with scale and works outwards.
What you'll learn
12 chapters, then the quiz
- 01The scale of thingsWhy the pictures are always wrong.
- 02The SunAn ordinary star that happens to be close.
- 03The rocky planetsMercury, Venus, Earth and Mars.
- 04The giant planetsJupiter, Saturn, Uranus and Neptune.
- 05MoonsWorlds of their own.
- 06Asteroids and cometsThe leftovers.
- 07Gravity and orbitsFalling forever, sideways.
- 08Light and distanceLooking out is looking back.
- 09Stars and their livesBorn in clouds, ending in several ways.
- 10GalaxiesWhere we sit in the larger structure.
- 11The expanding universeHow we know it started.
- 12Observing for yourselfWhat you can find without equipment.
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